62
• Contents of alarm display on remote controller
For the remote controller, there are other alarm contents listed on the following table besides the alarm display on outdoor main unit
control P.C. board.
Wired remote
control display
Detected contents
<E01>
Remote controller detects abnormal signal transmitted
from the indoor unit.
• Failure of remote controller to receive.
(For group control, signal from the main unit.)
• No setting of system address, indoor unit address,
indoor unit individualization / main / sub
(Auto address setting not completed.)
<E02>
Remote controller not connected properly.
<<E03>> Indoor unit failed to receive serial signal by remote controller (or central controller).
E04
Indoor unit detects abnormal signal from outdoor main unit
control P.C. board.
• Receiving failure of remote controller
(For group control, signal from the main unit.)
• Inconsistencies in number of connected units and setting
units when outdoor unit is turned ON power.
(Excepting the system address “0”)
E08
Setting failure
Indoor unit address settings duplicated
<<E09>>
Main remote control settings duplicated
E18 Indoor unit communication error in group control wiring
Main indoor unit failed to receive serial signal from sub
indoor unit.
<<L02>>
Setting failure
Indoor unit connected to multiple outdoor units is not for
multiple type.
<L03>
Main unit settings duplicated in group control indoor units
L07
Group control wiring connected to individual control indoor
unit
L08
Indoor unit address settings not made
<<L09>>
Outdoor unit capacity settings not made
<<F01>>
Indoor unit thermistor failure
Heat exchanger temperature sensor E1
<<F02>>
Water heat exchanger temperature sensor E2 (chiller)
<<F03>>
Heat exchanger temperature sensor E3
<<F10>>
Inlet temperature sensor
<<F11>>
Outlet temperature sensor
<<P09>> Connection failure of ceiling panel or connector
<<P01>>
Indoor unit protection
Fan protection thermostat
<<P10>>
Float switch
<<P12>>
Actuation of fan invertor protecting function
F29 Nonvolatile memory IC (EEPROM) failure on indoor unit control P.C. board
• The parentheses of << >> used in the table of alarm display does not affect anything the operation of other indoor units.
• The parentheses of < > used in the table of alarm display implies that there are two cases : according to the content of the symptom,
some affect the operation of other indoor units and others do not affect anything.
Alarm messages displayed on system controller
Serial
communication
errors
Mis-setting
Error in transmitting serial
communication signal
Indoor or main outdoor unit is not operating correctly.
Mis-wiring of control wiring between indoor unit, main outdoor unit and
system controller.
C05
Error in receiving serial
communication signal
Indoor or main outdoor unit is not operating correctly.
Mis-wiring of control wiring between indoor unit, main outdoor unit and
system controller.
CN1 is not connected properly.
C06
Activation of
protective
device
Protective device of sub
indoor unit in group control is
activated.
When using wireless remote controller or system controller, in order to
check the alarm message in detail, connect wired remote controller to
indoor unit temporarily.
P30
NOTE
1. Alarm messages in << >> do not affect other indoor unit operations.
2. Alarm messages in < > sometimes affect other indoor unit operations depending on the fault.
00_340994_2WAY_Eng.indb 62 2022/8/4 14:28:55
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